Pt45lc12 45 how do I get to the thermal fuse on the ballsit? my tv wont come on I hear the fan the bulp looks good and too old.. and the gree light flashes on and off but the projector does not start... dgteague@msn.com

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If stad by light blinks 6 times, it is the "Thermal Fuse", it goes next to the Light Bulb, looks like a tine antena with a plastic tip (like a transistor), follow the wires all the way to the back, unplug it, check the Part # and order on line with Sony.com or by phone. I paid $5.00 for that piece pluw $15 shipping. After that, make sure you clean up very well all the vents and fans, due the obstruction of those areas, inside Tv reaches a temp higher than 110, the Thermal Fuse blow out for protection. A well ventilated TV (clean vents and fan) helps to avoid this proble again. If you do not have your mannual, go to www.Sony.com and look for support, they have all the manuals there available for free online. Check it to make sure the light blinking and the times blinking correspond to that problem. Good Luck!!!

If you do not hear anything trying to come on, no fans, or relays clicking, you probably have a Thermal Fuse that has opened. Do to the dis-assembly that is required to replace it I recommend you have a qualified Service person come out to verify the symptom and repair the set. If that is what it is I estimate 400.00 or less to repair the set.
I hope this helps
Skyassoc

3 times means Lamp and 6 means you have lost a voltage. You may have a thermal fuse blown.This set has a common trouble with overheating caused by the drum fan located on top of the lamp housing clogged up with dust. When the lamp is getting old it runs hotter and that combined with the fan being clogged the thermal fuse blows. You must replace the lamp and thermal fuse. You must also clean out or replace the lamp fan. This drum type fan should be cleaned out every year or two depending on the environment.

THE CODE FOR 6 RED FLASHES IS YOUR THERMAL FUSE ITS LOCATED ON YOUR FAN HOUSEING FOR YOUR LAMP WHEN YOU FIND THE FUSE USE A JUMPER OR JUST TWIST THE BARE WIRES FOR THE FUSE TOGETHER AND TRY TO START THE T.V. TO CHECK IF THE FUSE IS GOOD ITS A LITTLE BLACK SQUARE LOOKING PIECE

Good Day, teagues;It sounds like a bad lamp. Lamps normally have a 5,000-hour life. Looking at the lamp can tell you if it’s bad if it looks burnt, but not always. Your Panasonic TV is also known for having failure of the ballast, which turns the lamp on. 95% of the time it’s the lamp, trouble shooting the ballast is a little more challenging.The lamp replacement is a very simple process; instructions are in the TV’s owner’s manual. Call the factory, they will send you the lamp to your home with complete detailed instructions.Good Luck, Big Irish.

If you are not a tech you don't want to mess with the voltage that feeds the lamp. The vibration of moving the set can cause the lamp to go bad. blinking LED is usually a sign the lamp is bad. It is a good Idea to open the lamp door and then close it again to make sure the door switch isn't the problem

The PROPER way to replace the thermal fuse is to remove the optical block first. There are at least two recessed screws holding the block in place. BE VERY CAREFUL removing the block as it is very easy to tear/rip wires when doing so. I cannot emphasize enough NOT TO JUST THROW THE NEW THERMAL FUSE INSIDE THE CABINET!!!! The thermal fuse is a safety device mounted near the lamp to prevent overheating. Those that choose to just let the fuse "sit out in the open air" are risking greater failures and the possibility of fire.

6 blinks is most likely thermal fuse failure. parts should be available through sony. thermal fuse is a 2 pin device under the lamp cartridge(looking from back) metal oblong looking peice that is screwed into the bottom of the tv. the new thermal fuse sent from sony will look completly different and as long as you cut the wires on the old one you can leave it in the tv and position the new fuse around the old one.